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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library source_span.span_with_context; | |
6 | |
7 import 'location.dart'; | 5 import 'location.dart'; |
8 import 'span.dart'; | 6 import 'span.dart'; |
9 import 'utils.dart'; | 7 import 'utils.dart'; |
10 | 8 |
11 /// A class that describes a segment of source text with additional context. | 9 /// A class that describes a segment of source text with additional context. |
12 class SourceSpanWithContext extends SourceSpanBase { | 10 class SourceSpanWithContext extends SourceSpanBase { |
13 /// Text around the span, which includes the line containing this span. | 11 /// Text around the span, which includes the line containing this span. |
14 final String context; | 12 final String context; |
15 | 13 |
16 /// Creates a new span from [start] to [end] (exclusive) containing [text], in | 14 /// Creates a new span from [start] to [end] (exclusive) containing [text], in |
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28 throw new ArgumentError( | 26 throw new ArgumentError( |
29 'The context line "$context" must contain "$text".'); | 27 'The context line "$context" must contain "$text".'); |
30 } | 28 } |
31 | 29 |
32 if (findLineStart(context, text, start.column) == null) { | 30 if (findLineStart(context, text, start.column) == null) { |
33 throw new ArgumentError('The span text "$text" must start at ' | 31 throw new ArgumentError('The span text "$text" must start at ' |
34 'column ${start.column + 1} in a line within "$context".'); | 32 'column ${start.column + 1} in a line within "$context".'); |
35 } | 33 } |
36 } | 34 } |
37 } | 35 } |
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